CVE-2025-68121: Unexpected session resumption in crypto/tls
CSIRTS triage
- What
- Unexpected session resumption vulnerability in TLS implementation allowing session reuse without proper validation.
- Who is affected
- Applications using affected crypto/tls libraries for session management.
- Urgency
- High severity (CVSS 7.4); not exploited but authentication bypass risk requires prompt patching.
- Action
- Identify the affected crypto/tls library and apply the corresponding security patch.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-68121
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2025-681210.77% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 53% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-68121 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- medium[UPDATE] [medium] Golang Go: Multiple vulnerabilitiescert-bund
- high[UPDATE] [high] Golang Go: Multiple vulnerabilitiescert-bund
- unknownMultiple vulnerabilities in Tenable products (August 4, 2026)cert-fr-avis
- high[UPDATE] [high] Splunk Splunk Enterprise: Multiple vulnerabilitiescert-bund
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